Alpaca is a multitasking operating system for Z-80 based arcade hardware. It has been designed to run on both Pac-Man and Pengo based arcade machines, but can easily be ported to other machines with similar architectures. It supports four concurrently running processes, task switching, simple inter-process messaging, semaphores, and a basic window-based graphical interface.
|Tags||Operating Systems Operating System Kernels|
Release Notes: Text output routines have been implemented for all three regions of the screen. These routines include the XY to offset conversions and text justification routines. The splash screen has been implemented, along with the routine to fill the screen with the wallpaper. A better rand() routine has also been put into place using the R register. Task switching is still untested, but implemented.
Release Notes: Basic setup of the cpu and hardware are done. Some utility functions such as memset, clearscreen, and sleep are implemented. Task switching is still unimplemented, but designed.